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8; 12 (bottom); 16 (left) Wellcome; 17 (bottom); 18; 19 (right) Folger Shakespeare Library Digital Image Collection and (left); 27 (right); 29; 30; 32 user DTR; 33 user Levochik; 38; 39 The Bodleian Library, University of Oxford; 43 user Sailko; 45 Wellcome; 47 (bottom) Silverhammermba & Jahobr; 49 (graphs) user Parcly Taxel; 50 (left) Wellcome; 56 Alexander Baranov; 58; 63; 66; 68; 73; 74; 82; 84 (bottom user Qypchak); 85; 88 (bottom); 94 Library of Congress; 97 user Nephiliskos; 98 user Theklan; 102; 106; 108; 109 users Zachi Evenor and Julie Anne Workman; 111; 112 PtrQs; 114 (top) user Hubertl; 114 (far right) user DXR; 115 user Fczarnowski; 118 Dennis Jarvis; 119 © Yann Forget / Wikimedia Commons / CC-BY-SA-3.0; 120; 127 (bottom) Manfred Brückels, (top) user AbseitsBerlin; 136 Tarisio Auctions; 145 (left) Wellcome; 146 (bottom) user Cmglee; 150; 152 (far bottom right) Biodiversity Heritage Library; 153; 154 (top right) user Prokofiev; 156; 160 NASA; 161 (top upper left) NASA and The Hubble Heritage Team (STScI/AURA); 172 user Mauroesguerroto; 174 (left) Wolfgang Sauber; 177; 182; 185; 187 user Rursus; 188 NASA/JPL-Caltech; 191 Phillip Westcott, National Institute of Standards and Technology; 192 (top) user Pbroks13 (bottom) U.S. Department of Energy; 193 (top right) user Jgmoxness, (top left and bottom) user Patrickringgenberg; 196 user Jgmoxness/Gary Meisner, 212, 215
© Oliver Brady, 13
© Artist Rights Society (ARS), New York/ADAGP, Paris/Foundation Le Corbusier (FLC), 128
© Wayne Rhodes. Retrieved from http://waynesquilts.blogspot.com/2014/04/pythagoras-lute.html, 154 (top left)
© DeBruine, Lisa M, and Benedict C Jones. 2015. “Average Faces.” OSF. October 13. osf.io/gzy7m, 167
© DeBruine, Lisa. 2016. “Young Adult Composite Faces”. figshare. doi:10.6084/m9.figshare.4055130.v1, 169 (top)
© Collin Spears. The Post National Monitor, World of Averages. Retrieved from https://pmsol3.wordpress.com/, 169 (bottom)
© Paul Steinhardt, 194
© Rafael Araujo, Cover, 2, 6, 14; 36; 54; 90; 142; 180, 206, endpapers
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